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CVE-2026-77929— ClipBucket < 5.5.3-#182 Remote Code Execution via Photo Upload Endpoint

Quick assessment

Affected
MacWarrior clipbucket-v5
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ClipBucket v5 before 5.5.3-#182 contains a file upload vulnerability that allows authenticated users to achieve remote code execution by uploading a PHP file with valid image magic bytes through the photo upload endpoint. The FileUpload::manageFile() function

CVSS 8.8 · High
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I. Basic Information for CVE-2026-77929

Vulnerability Information

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Vulnerability Title
ClipBucket < 5.5.3-#182 Remote Code Execution via Photo Upload Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
ClipBucket v5 before 5.5.3-#182 contains a file upload vulnerability that allows authenticated users to achieve remote code execution by uploading a PHP file with valid image magic bytes through the photo upload endpoint. The FileUpload::manageFile() function in fileupload.class.php fails to update the file extension after MIME validation, allowing an attacker-controlled .php extension to persist on disk and execute as PHP via PHP-FPM when the uploaded file is retrieved.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
MacWarrior clipbucket-v5 0 ~ 5.5.3-#182 -

II. Public POCs for CVE-2026-77929

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III. Intelligence Information for CVE-2026-77929

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Patches & Fixes for CVE-2026-77929 (1)

Other References for CVE-2026-77929 (2)

Same Patch Batch · MacWarrior · 2026-09-18 · 3 CVEs total

CVE-2026-77928 6.5 MEDIUM ClipBucket < 5.5.3-#182 Blind SQL Injection via Private Message Deletion Endpoint
CVE-2026-77927 6.5 MEDIUM ClipBucket < 5.5.3-#182 Blind SQL Injection via Photo Deletion Endpoint

IV. Related Vulnerabilities

Same product: clipbucket-v5
Same vendor: MacWarrior
Same weakness: CWE-434

V. Comments for CVE-2026-77929

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